Micromonospora veneta sp. nov., an endophytic actinobacterium with potential for nitrogen fixation and for bioremediation

Kaewkla, Onuma; Suriyachadkun, Chanwit; Franco, Christopher M. M.

doi:10.1007/s00203-021-02260-3

Cited by 10 publications

(5 citation statements)

References 41 publications

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“…bacterio.net/micromonospora.html), most of which are saprophytic, aerobic, and mesophilic. Additionally, some Micro- monospora species exhibit important roles in biocontrol, 18,19 nitrogen fixation, 20 and biofuel production. 21,22 3.…”

Section: Phenotype Of Micromonosporamentioning

confidence: 99%

“…Micromonospora strains are widely distributed in nature, inhabiting diverse environments such as terrestrial soils, − marine sediments, , mangrove forests, plants, and animals. , At present, the genus Micromonospora consists of 110 species with validly published and correct names (), most of which are saprophytic, aerobic, and mesophilic. Additionally, some Micromonospora species exhibit important roles in biocontrol, , nitrogen fixation, and biofuel production. , …”

Section: Phenotype Of Micromonosporamentioning

confidence: 99%

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Micromonospora: A Prolific Source of Bioactive Secondary Metabolites with Therapeutic Potential

et al. 2022

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Micromonospora, one of the most important actinomycetes genera, is well-known as the treasure trove of bioactive secondary metabolites (SMs). Herein, together with an in-depth genomic analysis of the reported Micromonospora strains, all SMs from this genus are comprehensively summarized, containing structural features, bioactive properties, and mode of actions as well as their biosynthetic and chemical synthesis pathways. The perspective enables a detailed view of Micromonospora-derived SMs, which will enrich the chemical diversity of natural products and inspire new drug discovery in the pharmaceutical industry.

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Section: Phenotype Of Micromonosporamentioning

confidence: 99%

Section: Phenotype Of Micromonosporamentioning

confidence: 99%

Micromonospora: A Prolific Source of Bioactive Secondary Metabolites with Therapeutic Potential

et al. 2022

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“…The genus currently encompasses more than 157 species with validly published names [4]. Micromonospora was originally considered a common freshwater actinobacterial group [5,6], but recent studies indicate a broad range of habitats for the genus including desert, marine sediment, plant root and hypersaline lake [7][8][9][10][11]. Micromonospora is one of the genera that produce a lot of physiologically active secondary metabolites, and has gained attention as a rich source in the exploitation of novel bioactive compounds, notably antibiotics [12,13].…”

Section: Introductionmentioning

confidence: 99%

Micromonospora antibiotica sp. nov. and Micromonospora humidisoli sp. nov., two new actinobacterial species exhibiting antimicrobial potential

Lee

Sik

Kim

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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Two novel actinobacterial strains, designated MMS20-R2-23T and MMS20-R2-29T, were isolated from riverside soil and subjected to taxonomic characterization. Both strains were Gram-stain-positive, aerobic, non-motile and filamentous, and formed orange to strong orange-brown coloured colonies, which later turned black. Both strains grew optimally at mesophilic temperatures, neutral to slightly alkaline pH and in the absence of NaCl. Analysis of 16S rRNA gene sequences indicated that the two novel strains fell into phylogenetic clusters belonging to the genus Micromonospora . Strains MMS20-R2-23T and MMS20-R2-29T showed the highest 16S rRNA gene sequence similarity to Micromonospora phytophila SG15T (99.3 %) and Micromonospora humida MMS20-R1-14T (99.4 %), respectively. Based on the comparative genome analysis, strain MMS20-R2-23T had the highest orthologous average nucleotide identity (orthoANI) value of 92.70 % with Micromonospora matsumotoense DSM 44100T, and MMS20-R2-29T shared 94.99 % with Micromonospora wenchangensis CCTCC AA 2012002T. Besides, the digital DNA–DNA hybridization (dDDH) values of MMS20-R2-23T and MMS20-R2-29T with the same species were 47.6 and 59.2% respectively, which were also highest among the compared species, thus confirming the separation of each strain at species level from related species. The orthoANI and dDDH values between MMS20-R2-23T and MMS20-R2-29T were 92.18 and 44.9% respectively. The genomes of strains MMS20-R2-23T and MMS20-R2-29T were estimated as 7.56 Mbp and 7.13 Mbp in size, and the DNA G+C contents were 72.5 and 72.9 mol%, respectively. The chemotaxonomic properties of both strains were consistent with those of the genus. The novel strains showed antimicrobial activity against a broad range of microbes, in particular Gram-positive bacteria and yeasts. It is evident that each of the isolated strains merits recognition as representing novel species of Micromonospora , for which the names Micromonospora antibiotica sp. nov. (type strain=MMS20-R2-23T=KCTC 49542T=JCM 34495T) and Micromonospora humidisoli sp. nov. (type strain=MMS20-R2-29T=KCTC 49543T=JCM 34496T) are proposed.

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“…[ 4 ] One such secondary metabolite is the Micromonospora , which has bioactive natural products with potential applications. [ 5 ]…”

Section: Introductionmentioning

confidence: 99%

Extracellular polymeric substances from marine actinobacterium of Micromonospora sp. and their antioxidant activity

George

Sivaperumal

Roy

2022

Journal of Advanced Pharmaceutical Technology &Amp; Research

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Actinobacteria, Gram-positive bacteria are the largest phyla among the major species in the bacteria domain. Micromonospora sp. is one of the secondary metabolite-producing Actinobacteria, and it has a comprehensive spectrum of antibacterial, antifungal, antitumor, antiviral, antiparasitic, diabetogenic anti-inflammatory, insecticidal, inhibitory of enzyme, antioxidant, and other biological activities. The objective of the study is to assess the antioxidant activity of the Actinobacterium Micromonospora sp. producing extracellular polymeric substances (EPSs). Enumeration and isolation of Actinobacteria from sediment samples are done. The marine Actinobacteria, Micromonospora sp. are identified by melanoid pigments and other chemotaxonomical characteristics. EPS is produced from the potential marine Actinobacteria and their components are estimated. The total antioxidant value is found for the EPS. The antioxidant activity of the ascorbic acid equivalent which was 142.65 μg/ml was equivalent to 150 μg/ml of the total antioxidant activity of the EPS produced. The role of different antioxidants and the action in different diseases were challenged since they could act as many mechanisms such as reducing power, providing hydrogen to radicals, and scavenging activity (free radical). To conclude, the potent antioxidant activity was obtained from Actinobacteria Micromonospora sp. producing extracellular substances. These extracts might bear anticancer metabolites and are considered a potent anticancer drug.

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Micromonospora veneta sp. nov., an endophytic actinobacterium with potential for nitrogen fixation and for bioremediation

Cited by 10 publications

References 41 publications

Micromonospora: A Prolific Source of Bioactive Secondary Metabolites with Therapeutic Potential

Micromonospora: A Prolific Source of Bioactive Secondary Metabolites with Therapeutic Potential

Micromonospora antibiotica sp. nov. and Micromonospora humidisoli sp. nov., two new actinobacterial species exhibiting antimicrobial potential

Extracellular polymeric substances from marine actinobacterium of Micromonospora sp. and their antioxidant activity

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